US Bridges

SR 161 over RR & City Streets

Fair

Pierce County, Washington · 0.6 N JCT SR 167 · Structure no. 0002410A0000000

Built
1938
87 years old
Condition
Fair
inspected June 2024
Type
Tee Beam
Concrete Continuous
Length
250 ft
5 main spans
Daily traffic
18,250
2023 count
Owner
State
State Highway Agency

About this bridge

SR 161 over RR & City Streets is a concrete continuous tee beam carrying SR 161 over RR & City Streets in Pierce County, Washington. It was built in 1938, so it is 87 years old, older than the Washington average of 49.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 18,250 vehicles a day, roughly 5% of them trucks, projected to reach 25,664 by 2039. The structure is 250 ft (76.2 m) long and 30 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesSR 161
CrossesRR & City Streets
Location0.6 N JCT SR 167
RouteState Highway 161
CountyPierce County
StateWashington
Coordinates47.21211, -122.29392
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39 US tons
Inventory rating23 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadH 15
Structure length250 ft (76.2 m)
Longest span70 ft (21.3 m)
Deck width30 ft (9.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,250 (2023)
Projected traffic25,664 by 2039
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway and railroad
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$3.8 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR 161 over RR & City Streets built?

It was built in 1938, making it 87 years old in 2025.

What condition is SR 161 over RR & City Streets in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in June 2024.

How much traffic does SR 161 over RR & City Streets carry?

About 18,250 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is SR 161 over RR & City Streets?

The structure is 250 ft (76.2 m) long with a longest span of 70 ft (21.3 m) and a deck 30 ft wide.

Who owns SR 161 over RR & City Streets?

It is owned by the State Highway Agency.